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Finding the Fourth Proportional to 55,574.43, 83,368.50 and 18,124.49

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Solution

The fourth proportional to 55,574.43, 83,368.50 and 18,124.49 is: 27,188.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,574.43 : 83,368.50 = 18,124.49 : x
  2. Step 2: Convert to fraction form
    55,574.43/83,368.50 = 18,124.49/x
  3. Step 3: Cross multiply
    55,574.43x = 83,368.50 × 18,124.49
  4. Step 4: Simplify right side
    55,574.43x = 1,511,011,544.57
  5. Step 5: Solve for x
    x = 1,511,011,544.57/55,574.43
  6. Step 6: Final answer
    x = 27,188.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.